Stellar Industries C1129 Oil Cooler for 23P Compressor – 24 GPM

If you’re unsure whether this part is compatible with your truck or equipment, please contact us to confirm fitment before purchasing.

The Stellar Industries C1129 Oil Cooler is an air-to-oil heat exchanger designed for compatible Stellar 23P reciprocating air-compressor systems. It has a maximum oil-flow rating of 24 GPM and helps remove excess heat from the circulating compressor oil.

Maintaining the correct oil temperature protects internal compressor components, preserves proper lubrication, and supports reliable operation under demanding service conditions. For Stellar 30P compressor applications, use oil cooler part number 106185 instead.

What This Part Is Used For

The Stellar C1129 cooler transfers heat from the compressor oil to the surrounding airflow. This helps prevent excessive oil temperatures that could reduce lubrication performance, damage seals and bearings, or cause the compressor to shut down.

Common Reasons For Replacement

Oil leaking from the cooler core
Compressor oil temperature is excessively high
Cooler fins are bent, clogged, or damaged
Oil flow through the cooler is restricted
Cracked fittings or damaged connection ports
Cooler is corroded or contaminated
Core damaged by vibration or impact
Repeated compressor overheating or shutdowns

Key Features

Stellar Industries part number C1129
Compressor oil-cooler assembly
Maximum oil flow of 24 GPM
Air-to-oil heat-exchanger design
Designed for compatible Stellar 23P compressors
Helps regulate compressor oil temperature
Supports proper lubrication and compressor reliability
30P applications require part number 106185